619 FZUS63 KDTX 190710 GLFLH Open Lake Forecast for Lake Huron National Weather Service Detroit/Pontiac MI 310 AM EDT Tue May 19 2026 For waters beyond five nautical miles off shore on Lake Huron Waves are the significant wave height - the average of the highest 1/3 of the wave spectrum. Occasional wave height is the average of the highest 1/10 of the wave spectrum. .SYNOPSIS...A cold front sweeps across the region this evening, veering winds from southwest to northwest. Strong to severe thunderstorms will be possible ahead of this cold front. High pressure, 30.50 inches, then builds in mid-week. LHZ361-191515- Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore- 310 AM EDT Tue May 19 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON... .TODAY...Southeast winds 10 to 15 knots becoming south 15 to 20 knots in the late morning and early afternoon...then veering to the west late in the afternoon. A chance of showers in the morning...then showers likely in the afternoon. Waves 3 to 5 feet building to 4 to 6 feet late in the afternoon. Waves occasionally around 8 feet. .TONIGHT...Northwest winds 15 to 20 knots increasing to 20 to 25 knots early in the morning. Showers likely in the evening. Waves 6 to 9 feet. Waves occasionally around 12 feet. .WEDNESDAY...Northwest winds 20 to 25 knots with gusts to around 30 knots decreasing to 15 to 20 knots in the late morning and afternoon. Waves 5 to 7 feet. Waves occasionally around 10 feet. .WEDNESDAY NIGHT...Northwest winds 15 to 20 knots becoming north 5 to 10 knots. Waves 3 to 5 feet subsiding to 2 to 4 feet after midnight. .THURSDAY...Northeast winds 5 to 10 knots veering to the east late in the morning...then becoming light and variable late in the evening. Waves 2 feet or less. .FRIDAY...East winds 5 to 10 knots increasing to 15 to 20 knots. A chance of. Waves 2 feet or less building to 2 to 4 feet. .SATURDAY...East winds 20 to 25 knots with gusts to around 30 knots decreasing to 10 to 15 knots. A chance of showers early in the morning. Waves 5 to 7 feet. Waves occasionally around 10 feet. $$ LHZ362-363-191515- Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore- Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore- 310 AM EDT Tue May 19 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON... .TODAY...South winds 10 to 15 knots increasing to 15 to 20 knots in the late morning and afternoon. A chance of showers in the afternoon. Waves 5 to 7 feet. Waves occasionally around 10 feet. .TONIGHT...Southwest winds 15 to 20 knots veering to the northwest in the late evening and overnight. A chance of showers in the evening. Waves 6 to 9 feet. Waves occasionally around 12 feet. .WEDNESDAY...Northwest winds 20 to 25 knots becoming north 15 to 20 knots in the late morning and afternoon. Waves 6 to 9 feet. Waves occasionally around 12 feet. .WEDNESDAY NIGHT...North winds 15 to 20 knots becoming northwest 10 to 15 knots after midnight. Waves 4 to 6 feet. Waves occasionally around 8 feet. .THURSDAY...Northeast winds 5 to 10 knots. Waves 2 to 4 feet subsiding to 2 feet or less. .FRIDAY...East winds 5 to 10 knots increasing to 15 to 20 knots. A chance of showers by midnight. Waves 1 to 3 feet building to 3 to 5 feet . .SATURDAY...East winds 15 to 20 knots becoming northeast 10 to 15 knots . A chance of showers until afternoon. Waves 4 to 6 feet. $$ LHZ462>464-191515- Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore- Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore- Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore- 310 AM EDT Tue May 19 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON... .TODAY...South winds 10 to 15 knots increasing to 15 to 20 knots in the late morning and afternoon. A chance of showers and thunderstorms in the afternoon. Waves 3 to 5 feet. .TONIGHT...Southwest winds 15 to 20 knots becoming west 10 to 15 knots in the late evening and overnight. A chance of showers and thunderstorms in the evening...then a chance of showers after midnight. Waves 4 to 6 feet. Waves occasionally around 8 feet. .WEDNESDAY...North winds 10 to 15 knots. A chance of showers in the morning. Waves 4 to 6 feet. .WEDNESDAY NIGHT...North winds 10 to 15 knots. Waves 4 to 6 feet. Waves occasionally around 8 feet. .THURSDAY...Northeast winds 10 to 15 knots decreasing to 5 to 10 knots late in the evening. Waves 2 to 4 feet subsiding to 1 to 3 feet. .FRIDAY...East winds 10 to 15 knots increasing to 15 to 20 knots by midnight. A chance of showers early in the evening. Rain showers likely by midnight. Waves 1 to 3 feet building to 3 to 5 feet . .SATURDAY...East winds 15 to 20 knots becoming northeast 10 to 15 knots . Showers likely early in the morning. A chance of showers in the late morning and early afternoon. Waves 3 to 5 feet subsiding to 2 to 4 feet by midnight. $$ LHZ461-191515- MAFOR 1909/ HURON NORTH 11410 11420 11426 11520 11626 11720 12730. Waves 2 to 4 feet building to 3 to 5 feet...THEN building to 5 to 7 feet. Occasional wave height around 10 feet today. Waves 5 to 7 feet. Occasional wave height around 9 feet tonight. HURON SOUTH 12410 11420 12520 11610 12720. A chance of showers and thunderstorms this afternoon and evening. Waves 2 to 4 feet building to 3 to 5 feet today. Waves 3 to 5 feet tonight. $$ MR Experimental modernized open lake forecast is available online at weather.gov/dtx/glftable (all lower case) Graphical marine forecasts are available online at weather.gov/greatlakes (all lower case)  625 FZUS63 KDTX 190710 GLFSC Lake St Clair Forecast National Weather Service Detroit/Pontiac MI 310 AM EDT Tue May 19 2026 Waves are the significant wave height - the average of the highest 1/3 of the wave spectrum. Occasional wave height is the average of the highest 1/10 of the wave spectrum. .SYNOPSIS...A cold front sweeps across the region this evening, veering winds from southwest to northwest. Strong to severe thunderstorms will be possible ahead of this cold front. High pressure, 30.50 inches, then builds in mid-week. LCZ460-191515- Lake St Clair- 310 AM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EDT THIS MORNING THROUGH THIS EVENING... .TODAY...South winds 10 to 15 knots becoming southwest 20 to 25 knots. Partly sunny. A chance of light showers in the late morning and early afternoon. A chance of thunderstorms in the afternoon. Light showers likely late in the afternoon. Waves 1 to 3 feet building to 2 to 4 feet in the afternoon. .TONIGHT...Southwest winds 15 to 20 knots becoming west 10 to 15 knots by midnight...then becoming north 15 to 20 knots early in the morning. Mostly cloudy. Showers likely early in the evening. A chance of thunderstorms in the evening. A chance of light showers in the late evening and overnight. Waves 1 to 3 feet. .WEDNESDAY...North winds 15 to 20 knots diminishing to 10 to 15 knots in the late morning and afternoon. Partly sunny. A chance of light showers early in the morning. Waves 1 to 3 feet. .WEDNESDAY NIGHT...Northeast winds 15 to 20 knots diminishing to 10 to 15 knots after midnight. Mostly clear. Waves 1 to 3 feet. .THURSDAY...Northeast winds 10 to 15 knots. Mostly sunny becoming partly cloudy. Waves 2 feet or less. .FRIDAY...East winds 20 to 25 knots with gusts to 30 knots. Showers. Waves 1 to 3 feet. A Small Craft Advisory may be needed. .SATURDAY...Northeast winds 20 to 25 knots with gusts to 30 knots. Mostly cloudy with showers. Waves 2 to 4 feet. $$ MR Experimental modernized open lake forecast is available online at weather.gov/dtx/glftablesc Graphical marine forecasts are available at weather.gov/greatlakes  377 FZUS61 KBUF 190726 GLFLO Open Lake Forecast for Lake Ontario National Weather Service Buffalo NY 326 AM EDT Tue May 19 2026 For waters beyond five nautical miles of shore on Lake Ontario Waves are the significant wave height - the average of the highest 1/3 of the wave spectrum. Occasional wave height is the average of the highest 1/10 of the wave spectrum. .SYNOPSIS...An area of low pressure at 29.7 inches over Wisconsin will track northeast to the Upper Great Lakes tonight into Tuesday morning, then to central Quebec Wednesday while strengthening to 29.4 inches. A cold front attendant to this low will cross the Lake late Tuesday night into Wednesday morning. A large 30.4 inch high will then build across the entire Great Lakes region Wednesday night through Thursday. High pressure will move to the east and weaken to 30.1 inches Friday. A 29.9 inch low will track across the Ohio Valley and near the lake Saturday. LOZ062-191500- Lake Ontario open waters from the Niagara River to Hamlin Beach- 326 AM EDT Tue May 19 2026 .TODAY...Southwest winds 10 to 15 knots increasing to 15 to 20 knots. A chance of showers early. Waves 1 to 3 feet building to 3 to 5 feet. .TONIGHT...Southwest winds 15 to 20 knots becoming west. Showers with a chance of thunderstorms in the evening, then showers likely after midnight. Waves 3 to 5 feet. .WEDNESDAY...Northwest winds 10 to 15 knots becoming west. A chance of showers in the morning. Waves 2 to 4 feet subsiding to 1 to 3 feet. .WEDNESDAY NIGHT...Northwest winds 10 to 15 knots becoming north. Waves 1 to 3 feet. .THURSDAY...Northeast winds 5 to 15 knots becoming east 10 knots or less. Waves 2 feet or less. .FRIDAY...East winds 10 to 15 knots increasing to 15 to 20 knots. Showers likely Friday night. Waves 2 feet or less building to 2 to 4 feet. .SATURDAY...East winds 15 to 25 knots diminishing to 10 to 15 knots. Showers likely. Waves 3 to 6 feet subsiding to 2 to 4 feet. Winds and waves higher in and near thunderstorms. $$ LOZ063>065-191500- Lake Ontario open waters from Hamlin Beach to the Saint Lawrence River- 326 AM EDT Tue May 19 2026 .TODAY...Southwest winds 10 to 15 knots. A chance of showers early. Waves 1 to 3 feet building to 2 to 4 feet. .TONIGHT...Southwest winds 10 to 15 knots becoming west 15 to 20 knots. A chance of showers and thunderstorms early, then showers with a chance of thunderstorms. A chance of showers late. Waves 2 to 4 feet building to 3 to 5 feet. .WEDNESDAY...West winds 15 to 20 knots. A chance of showers in the morning. Waves 3 to 6 feet building to 4 to 7 feet. Waves occasionally around 9 feet. .WEDNESDAY NIGHT...West winds 15 to 20 knots becoming north 10 to 15 knots. Waves 4 to 7 feet subsiding to 2 to 4 feet. Waves occasionally around 9 feet. .THURSDAY...Northeast winds 5 to 15 knots diminishing to less than 10 knots. Waves 1 to 3 feet subsiding to 1 foot or less. .FRIDAY...East winds 5 to 15 knots increasing to 15 to 20 knots. Showers likely Friday night. Waves 1 to 3 feet. .SATURDAY...East winds 15 to 25 knots becoming southeast. Showers. Waves 2 to 4 feet building to 3 to 5 feet, then subsiding to 1 to 3 feet. Winds and waves higher in and near thunderstorms. $$ LOZ061-191500- MAFOR 1909/ ONTARIO WEST 1/2 12510 13520 11526 11520 11620. A chance of thunderstorms this evening. Waves 1 to 3 feet building to 3 to 5 feet today. Waves 3 to 5 feet tonight. ONTARIO EAST 1/2 15510 11526 11520. A chance of thunderstorms this evening. Waves 1 to 3 feet today. Waves 2 to 4 feet building to 3 to 5 feet tonight. $$  399 FZUS61 KBUF 190726 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 326 AM EDT Tue May 19 2026 SLZ022-024-191500- Saint Lawrence River from Cape Vincent to Saint Regis 326 AM EDT Tue May 19 2026 .TODAY...Southwest winds 10 to 15 knots. Mostly cloudy this morning, then becoming mostly sunny. .TONIGHT...Southwest winds 10 to 15 knots. A chance of showers through the early overnight, then showers likely late. .WEDNESDAY...Southwest winds 5 to 15 knots becoming northwest. A chance of showers in the morning. .WEDNESDAY NIGHT...Northwest winds 5 to 15 knots becoming north. Mainly clear. .THURSDAY...North winds 5 to 10 knots becoming light and variable. Mainly clear, then becoming partly cloudy. .FRIDAY...Light and variable winds. A chance of showers Friday night. .SATURDAY...East winds 10 knots or less. Showers likely. $$  309 FZUS61 KCLE 190742 GLFLE Open Lake Forecast for Lake Erie National Weather Service Cleveland OH 342 AM EDT Tue May 19 2026 For waters beyond five nautical miles of shore on Lake Erie Waves are the significant wave height - the average of the highest 1/3 of the wave spectrum. Occasional wave height is the average of the highest 1/10 of the wave spectrum. .SYNOPSIS... A cold front moves southeast across the lake tonight. High pressure 30.40 inches moves east across the Great Lakes Wednesday night through Thursday night. A trough averaging 30.10 inches lifts north into the region Friday and persists into the weekend. LEZ162-163-191415- Detroit River Lt. to Maumee Bay OH to Reno Beach OH beyond 5NM offshoreline to US-Canadian border- Reno Beach to The Islands OH beyond 5NM off shoreline to US- Canadian border- 342 AM EDT Tue May 19 2026 .TODAY...South winds 10 to 15 knots becoming southwest 15 to 20 knots. A chance of showers this morning, then a chance of showers with a slight chance of thunderstorms early this afternoon. A chance of showers and thunderstorms late. Waves 1 to 3 feet building to 2 to 4 feet. .TONIGHT...Southwest winds 15 to 20 knots becoming northwest 10 to 15 knots. Showers and thunderstorms in the evening, then showers likely with a slight chance of thunderstorms after midnight. A chance of showers with a slight chance of thunderstorms late. Waves 2 to 4 feet subsiding to 1 to 3 feet. .WEDNESDAY...North winds 5 to 15 knots becoming northeast. A chance of showers in the morning. Waves 1 to 2 feet. .WEDNESDAY NIGHT...Northeast winds 10 to 15 knots increasing to 15 to 20 knots. Waves 1 to 3 feet. .THURSDAY...Northeast winds 15 to 20 knots. Waves 1 to 3 feet building to 2 to 4 feet. .FRIDAY...East winds 15 to 25 knots. Showers likely during the day, then showers with a chance of thunderstorms Friday night. Waves 2 to 4 feet building to 3 to 5 feet, then subsiding to 2 to 4 feet. .SATURDAY...Southeast winds 15 to 20 knots becoming north 5 to 15 knots. A chance of showers during the day. Waves 2 to 4 feet subsiding to 2 feet or less. Winds and waves higher in and near thunderstorms. $$ LEZ164>167-191415- The Islands to Vermilion OH beyond 5 nm off shoreline to US- Canadian border- Vermilion to Avon Point OH beyond 5 nm off shoreline to US- Canadian border- Avon Point to Willowick OH beyond 5 nm off shoreline to US- Canadian border-Willowick to Geneva-on-the- Lake OH beyond 5NM off shoreline to US-Canadian border- 342 AM EDT Tue May 19 2026 .TODAY...Southwest winds 10 to 15 knots increasing to 15 to 20 knots. A chance of showers this morning, then a chance of showers and thunderstorms this afternoon. Waves 1 to 3 feet building to 2 to 4 feet. .TONIGHT...Southwest winds 15 to 20 knots becoming northwest. Showers and thunderstorms in the evening, then showers likely with a chance of thunderstorms after midnight. Showers likely with a slight chance of thunderstorms late. Waves 2 to 4 feet subsiding to 1 to 3 feet. .WEDNESDAY...North winds 15 to 20 knots diminishing to 10 to 15 knots. A chance of showers in the morning. Waves 1 to 3 feet. .WEDNESDAY NIGHT...North winds 10 to 15 knots becoming northeast 15 to 20 knots. Waves 1 to 3 feet building to 2 to 4 feet. .THURSDAY...Northeast winds 15 to 20 knots becoming east. Waves 2 to 4 feet building to 3 to 5 feet, then subsiding to 2 to 4 feet. .FRIDAY...East winds 15 to 20 knots. Showers likely during the day, then showers with a chance of thunderstorms Friday night. Waves 2 to 4 feet building to 3 to 5 feet, then subsiding to 2 to 4 feet. .SATURDAY...Southeast winds 15 to 20 knots becoming east 5 to 15 knots. Showers likely during the day, then a chance of showers Saturday night. Waves 2 to 4 feet subsiding to 1 to 3 feet. Winds and waves higher in and near thunderstorms.$$ LEZ061-168-169-191415- Ripley to Buffalo NY extending from 5NM off shoreline to US- Canadian border-Geneva-on-the- Lake to Conneaut OH beyond 5 nm off shoreline to US- Canadian border- Conneaut OH to Ripley NY beyond 5 nm off shoreline to US- Canadian border- 342 AM EDT Tue May 19 2026 .TODAY...Southwest winds 10 to 15 knots. A slight chance of showers this morning, then a chance of showers with a slight chance of thunderstorms early this afternoon. A slight chance of showers and thunderstorms late. Waves 1 to 3 feet. .TONIGHT...Southwest winds 10 to 15 knots becoming west. Showers and thunderstorms in the evening, then showers likely with a chance of thunderstorms after midnight. Waves 2 to 4 feet. .WEDNESDAY...Northwest winds 10 to 15 knots becoming west. A chance of showers in the morning. Waves 1 to 3 feet. .WEDNESDAY NIGHT...Northwest winds 10 to 15 knots becoming northeast. Waves 1 to 2 feet. .THURSDAY...Northeast winds 15 to 20 knots becoming east 10 to 15 knots. Waves 1 to 3 feet. .FRIDAY...East winds 15 to 20 knots. A chance of showers during the day, then showers Friday night. Waves 1 to 3 feet. .SATURDAY...Southeast winds 15 to 20 knots becoming south 5 to 15 knots. Showers likely during the day, then a chance of showers Saturday night. Waves 1 to 3 feet. Winds and waves higher in and near thunderstorms. $$ LEZ161-191415- MAFOR 1909/ ERIE WEST 1/3 11510 11410 11510 11520 11529 12519 11616. Waves 1 to 3 feet building to 2 to 4 feet today. Waves 2 to 4 feet subsiding to 1 to 3 feet tonight. ERIE CENTRAL 1/3 13510 11520 11529 11519 11516 11616. Waves 1 to 3 feet building to 2 to 4 feet today. Waves 2 to 4 feet tonight. ERIE EAST 1/3 11500 14510 11519 11516 11616. Waves 1 to 3 feet. $$